Yes, it is true that drain flies, commonly referred to as moth flies, breed and thrive in moist organic environments like a drain. They are also known to like the stagnant water of the bathroom sinks, showers, or unattended drains. Though, it is true that they do not pose any threat but double up quickly, so it is a good plan to tackle them quickly.
Before you begin with the process or methods, make sure you know that it is actually the dirty, clogged drains with blockages from grime, gunk, or soap buildups that attract these flies the most. But why’s that? Well, these flies actually lay their eggs in the muck and grime found in these drains, and it is often the case with the bathroom that is more frequently used.
Step 1: Identify the Source
First of all, figuring out how, where, and when the flies are entering should be the primary goal. The easiest way to go is to lay clear tape with the sticky side down over the suspected drain at night. If by morning the tape has some of the flies glued to it, you have pinpointed the exact source. It’s important to check every possible drain, as the spread of infestations can occur in a variety of places.
Step 2: Clean the Drains
After pinpointing the problem drain, the next step will be to completely clean it. You know, the aim is to remove those organic materials that are responsible for fly reproduction.
Start with a hard pipe brush to scrub the inside of the drain, which removes the slime that attracts flies. Ensure that you do not forget to clean around the drain opening and the underside of any rubber drain cover that you possibly have.
After doing a bit of scrubbing, the next step would be to flush down some hot water through the drain. Yes, the simple act of pouring hot water down the drain every day for about a week is a better alternative and would help prevent flies from re-infestation by ensuring that the buildup is kept in check.
Step 3: Use Natural Cleaning Solutions
You see, cleaning can be much more effective with natural ingredients. Try combining baking soda, salt, and vinegar for a more thorough clean, you know? Start by pouring ½ cup each of baking soda and salt down the drain, followed by a cup of vinegar. The reaction will cause foaming and unclog the drain. Then let it stay overnight and finally, you can flush hot water into the drain in the morning to help clear out any residue.
Step 4: Enzymatic Cleaners
When you use enzymatic cleaners to destroy organic matter that is causing your plumbing trouble, it does the job effectively. Flush with water after following the instructions given by the manufacturer. Keep in mind that very aggressive chemicals should be avoided since they might destroy your piping system.
Step 5: Eliminate Remaining Adult Flies
By using traps such as apple cider vinegar or sticky fly traps, you will effectively eliminate any adult flies that have made your bathroom their breeding ground. As soon as the cleanup is done, the adult flies will naturally die within a short period of time.